1/5/10/20/200PCs N35 rectangular magnet F 20x10x4mm hole 4 mm super strong neodymium magnet 20*10*4mm NdFeB magnet 20x10x4

•Condition: Brand newSize:20x10x4-4Tolerance: +-0.5mmMaterial: Neodymium magnetsCertification:RoHS passedGrade: N35Hcj 11 KOeHcb10.5 KOeBHmax: 48-51 MGOeMagnetization: Axially magnetized / Poles on Flat EndsMax Operating Temperature: 80C/176FPlating: nickel copper nickel triple layer platedWeight: 0.2gVolume: 50mm3Magnetic pull force: ca. 0.1kgNote:1: Neodymium magnet is extremely powerful,Pls take care of your fingers or other body parts to avoid injured between 2 pieces big magnet2: Neodymium magnet is very fragile & easy damaged,Pls handle gently3: strong magnets should keep away from ironware and some easily supplier iron products,Such as monitors,Bank cards,Computers,Television and mobile phonesCaution: strong magnets are brittle; strong magnet could pinch your fingers badly; if you allow two magnets attract together, it may cracks and the chips could hurt your eyes(The pull force was tested at 20 Celsius degree, on a polished iron plate with a thickness of 20 mm. The magnet was deducted vertically. A difference of up to -10% compared to the specified value is possible in exceptional cases.)Neodymium magnets Usages